A book resting on a table does not move. According to Newton's First Law, the net force on the book must be zero since the book is not moving. The force that explains why books do not fall through tables is called the normal force \( F_N \). It is a perpendicular contact force exerted by a surface.*Diagram Explanation:*The diagram shows a book resting on a table. There are two forces acting on the book: the gravitational force \( F_g \) acting downwards, and the normal force \( F_N \) exerted by the table acting upwards. These forces are equal in magnitude and opposite in direction, resulting in a net force of zero, which keeps the book stationary.Q11: How does the table “know” how much normal force to exert as the weight of the object placed on top of it changes?Q12: If we had a very powerful microscope, what would we expect to see happening at the surface of the table, underneath the ball?

Answers: Q11) The weight of the book acting vertically downward and the Normal force acting…

A book resting on a table does not move. According to Newton's First Law, the net force on the book must be zero since the book is not moving. The force that explains why books do not fall through tables is called the normal force Fx. It is a perpendicular contact force exerted by a surface. In the drawing at the right, a book is sitting on the table. The book is not moving, so the net force on it must be zero. FN Fs Q11 How does the table "know" how much normal force to exert as the weight of the object placed on top of it changes? Q12 If we had a very powerful microscope, what would we expect to see happening at the surface of the table, underneath the ball?

A book resting on a table does not move. According to Newton's First Law, the net force on the book must be zero since the book is not moving. The force that explains why books do not fall through tables is called the normal force Fx. It is a perpendicular contact force exerted by a surface. In the drawing at the right, a book is sitting on the table. The book is not moving, so the net force on it must be zero. FN Fs Q11 How does the table "know" how much normal force to exert as the weight of the object placed on top of it changes? Q12 If we had a very powerful microscope, what would we expect to see happening at the surface of the table, underneath the ball?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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